56 TOOTH = L X B = 85 MM, 38 TOOTH L X B = 60 MM 26 TOOTH L X B = 40MM, 6 TOOTH = 32MM Compatible with most STEM | STEAM | Maker | DIY projects and activities, and TeacherGeek building components (dowels, connector strips)▲ Works well with motors, turbines, pulleys, screws or on their own in gear trains Works well with motors, turbines, pulleys, screws or on their own in gear trains it a perfect choice for laboratories, science education, and DIY models.
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